CATDOLL : CATDOLL: Can you earn 10 yuan a year from a carp?

Can you earn 10 yuan a year from a carp?

One carp can earn 10 yuan a year. It is farmed in almost all provinces and cities in China. In southern China, the retail price of carp in the general market is 8 to 10 yuan per catty, and most people think that carp is a cheap fish. There are many precious species of carp, but for various reasons, their numbers are getting smaller and smaller. Therefore, many people have not heard of the names of these carps. For example, the Yellow River carp is a precious and delicious carp. In addition to the Yellow River carp, there is also a kind of black carp called "Yanyuan carp" in the Yangtze River Basin of China, which is more precious than the Yellow River carp. It is said that wild Yanyuan carp sold for 600 yuan per catty last year.

How much is the profit of raising fish in a 20-acre reservoir? Is it profitable to open a fish farm?

When it comes to the profit of raising fish in a 20-acre reservoir, everyone knows that some people ask whether it is profitable to open a fish farm. In addition, some people want to ask how much money is needed to raise fish in a 20-acre pond in a year. Do you know what is going on? In fact, if you raise fish in a 30-acre freshwater reservoir in the mainland, what is the annual output value? Let's take a look at whether it is profitable to open a fish farm. I hope it can help everyone!

The profit of raising fish in a 20-acre reservoir 1. The profit of raising fish in a 20-acre reservoir: Is it profitable to open a fish farm? There are ways to start a business, but it is not business opportunities, management, or team performance. It cannot wait for funds, high starting point, large scale, fast speed, and regularization. The profit of raising fish in 10 acres a year.

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2. Profit of fish farming in a 20-mu reservoir: How much money is needed to raise fish in a 20-mu pond in a year? Take one mu of fish pond as a unit, and take the yield per mu as an example. According to the availability of feed, fertilizer, fish species, etc. in general rural areas, the yield of silver carp per mu (the same below) is set at jin, and the yield of edible fish is set at jin. The details are: silver carp per mu, 2 jin/tail; silver carp 50 jin, 3.5 jin/tail; grass carp per mu, 6 jin/tail; bream 50 jin, 1 jin/tail; silver carp per mu, 2 jin/tail; crucian carp per mu, 0.8 jin/tail. The total income is calculated as: ×2.5+50×4.5+×5=yuan. The total income of fish farming in a 20-mu fish pond is: 20 yuan=yuan. The profit of fish farming in a 100-mu reservoir.

Based on this speculation (the same below in units of mu), the following should be put in: silver carp 34 jin, 0.2 jin/tail, 15 tails; bighead carp 3 jin, 0.2 jin/tail, 15 tails; grass carp 52.5 jin, 0.7 jin/tail, 75 tails; bream 5.5 jin, 0.1 jin/tail, 55 tails; crucian carp 14 jin, 0.1 jin/tail, 10 tails. The total investment is: silver carp 37 jin, edible fish 72 jin, total jin. At the end of the year, silver carp had a net weight gain of jin, and edible fish had a net weight gain of jin. Calculated based on the price of fish this year, the investment in fish species is: 34×1.6+3×2.8+52.5×5.5+5.5×5+14×4=.05 yuan. So the investment in fish species for a 20 mu fish pond is: .05 yuan 20= yuan

According to the high-quality feed and fertilizer on the market, the annual feed cost is 1000 yuan, and the fertilizer cost is 0.70 yuan per mu. According to the general rule, the water and electricity cost is 50 yuan per mu. The total cost of fish species, feed, fertilizer, water and electricity per mu is 0.75 yuan, and the return on investment is about 60G. So the investment for fish farming in a 20-mu fish pond is: 0.75 yuan 200.6 = 0.67 yuan.

3. Profits of fish farming in a 20-acre reservoir: How much is the annual output value of 30 acres of fish farming in a mainland freshwater reservoir? How much is the output value of 30 acres of fish farming depends on the management and operation! I have a reservoir for rent.

Here are some measures and methods for raising fish in reservoirs. Go back and take a look! Reservoir transfer and rental information.

1. Five measures to improve the benefits of reservoir fish farming

Fish farming in rural reservoirs has a low yield due to insufficient stocking of fish species and incomplete varieties. To improve the benefits of fish farming in reservoirs, the following five measures can be taken:

1. Artificially cultivate fish species and make a profit from fish farming in a 50-acre fish pond.

Reservoir fish farming requires a large amount of fish species. Generally, large and medium-sized reservoirs need to release hundreds of thousands of silver carp and bighead carp species every year. Using cages to carry out high-density intensive farming in reservoirs is an effective way to increase the yield of fish species.

2. Free range

The reservoir has a wide surface, strong winds and waves, and many ferocious fish such as snakehead and mandarin fish. The fish species released must be strong, have good body color and luster, and be larger than 12 cm. If small fish species under 10 cm and weak in physique are released, they often cannot adapt to the reservoir environment and are easily killed by ferocious fish. New regulations on reservoir contracting in 2021.

3. Make full use of water bodies and reasonably mix them

For aquaculture water areas ranging from tens to hundreds of acres, where the water quality is particularly fertile or in reservoirs where feeding and fertilization are carried out, generally 100 to 200 fish species can be raised per acre of water surface, and silver carp and bighead carp are the main species, of which bighead carp accounts for 55% to 60%, silver carp accounts for 30% to 35%, and carp, crucian carp, bream, grass carp and other fish account for 5% to 15%. In the case of relatively clear water quality and abundant aquatic plants, attention should be paid to grass carp, of which grass carp accounts for 65% to 70%, silver carp accounts for 10%, and carp, crucian carp and bream account for about 5%.

4. Do a good job in water quality management

Before the flood comes, the bottom dead water with low dissolved oxygen should be prepared to prevent fish from escaping with the water and the loss of a large amount of upper water in the reservoir rich in natural bait. The large amount of inorganic and organic fertilizers brought by the flood will also be collected in the reservoir, making the water quality fertile. From June to September when fish grow vigorously, the water level should be as high as possible to achieve the purpose of "wide water to raise big fish". At the same time, in order to promote the growth of fish, if conditions permit, the reservoir should also open up a wide range of fertilizer and bait sources, artificially plant lotus roots, goose grass and Sudan grass, etc., and cultivate bait in the water body through fertilization. Private fish pond transfer information.

5. Protect and increase the number of natural economic fish in reservoirs

Fish that grow in reservoirs without artificial stocking are called natural economic fish, mainly carp, crucian carp and shrimp. Although their output is lower than that of artificially farmed economic fish, the economic benefits are also considerable if their protection and proliferation are well done. Fishing should be banned during the Spring Festival fish season to protect spawning broodstock, eggs and young fish. In late autumn and early winter, the natural economic fish in the reservoir should be caught and the small ones should be kept, and efforts should be made to remove fierce fish such as snakehead and mandarin fish from the reservoir. This is of great significance to fully tap the potential of reservoir fish farming and achieve stable high yields, increase production and increase income.

How much is the annual output value of raising fish in 30 mu of freshwater reservoir in the mainland? 2. "Key Points of Freshwater Fish Farming"

We believe that fishery production is a major pillar industry for rural economic development and farmers' income increase. In order to further develop fishery production in our city in a healthy and rapid manner, we must establish and implement the concept and realize the transformation of the growth mode of freshwater fish farming. The main points are introduced as follows:

1. Strengthen the development planning of freshwater aquaculture. According to the principle of adapting measures to local conditions, research and formulate freshwater aquaculture planning, reasonably adjust the layout of freshwater aquaculture, implement the breeding of high-quality fish, special and precious fish and ordinary domestic fish, and take the development of high-quality, high-yield, aquatic product breeding as the direction, and gradually form a superior and characteristic aquatic product production belt.

2. Improve the scale of aquaculture. Adopt various forms such as cooperative system and shareholding system to accelerate the construction of aquatic product standardization, cultivate leading aquatic product aquaculture enterprises, and at the same time encourage the development of large-scale aquaculture households to improve the scale of freshwater aquaculture.

3. Develop ecological aquaculture. Vigorously promote advanced production such as ecological complementary three-dimensional aquaculture methods, implement mixed aquaculture of fish, turtles, clams, eels, loaches, fish and shrimp, etc., improve water utilization and comprehensive breeding benefits. Establish and improve the disease prevention and control system for freshwater aquaculture products, improve the aquaculture disease monitoring and reporting system, strengthen guidance on fish disease prevention and control for farmers, and improve the level of pollution-free aquaculture.

4. Strengthen the construction of improved varieties. Increase efforts in improving varieties and breeding, increase investment in improving variety breeding and promotion, implement improved variety subsidies for breeding varieties with high market demand, and accelerate the renewal of breeding varieties. Grasp the construction and production of famous and special seedling farms, and provide high-quality seedlings for breeders.

5. Strengthen market development. Implement the "market + fishermen" management, vigorously develop various sales intermediaries and brokers, give full play to their role in connecting with external markets and internal farmers, actively explore domestic and foreign markets, and expand product sales channels. Vigorously develop fish product processing and accelerate the conversion of fresh fish. How much money can a 20-acre fish pond make in a year?

III. Regulation and management of water quality in freshwater fish farming

China has abundant freshwater, with rivers, lakes, ponds and reservoirs scattered all over the country. The total amount of water ranks third in the world, with a total water volume of 2.7 trillion m3, which has relatively ideal freshwater aquaculture conditions. However, due to the large population of my country, the per capita freshwater aquaculture is relatively scarce and the distribution is very uneven. In order to give full play to the limited freshwater aquaculture production, it is necessary to study the environmental conditions for aquaculture from all aspects, and the regulation and management of the water quality of freshwater fish aquaculture water bodies is an important link. The income of 15 acres of fish ponds.

High-density aquaculture will cause a series of problems: increased chemical oxygen demand, increased oxygen consumption, reduced dissolved oxygen and sediment pH, and a large accumulation of some substances in the water body, which will cause water quality deterioration. If it continues, it will cause the ecosystem. From the perspective of sustainable development, there are higher requirements for water quality control in freshwater aquaculture. While pursuing increased aquaculture, the impact on ecology must also be considered. Water quality control technology is more important in this case. 30 acres of fish pond for transfer.

To regulate and manage water quality, on the one hand, we need to understand the biological, chemical and physical processes occurring in the aquaculture water, fully understand the laws of material generation, migration and transformation in the water body and the conventional detection methods of water quality indicators; on the other hand, water quality regulation and management are highly practical, and their technical development is often based on the accumulation of experience. Water quality control is the key to ensure the normal development and growth of hybrid silver crucian carp. Therefore, the water quality in the pond must be good. There is a proverb that "to raise a pond of fish, you must first manage the water well". This is the truth. Hybrid silver crucian carp likes to grow in an environment with richer water quality. Therefore, the water body for breeding must have a certain degree of fertility, but not too fertile, with "fertile, new, active and clear" as the standard. In the hot summer, microbial agents (Green Treasure No. 2) should be used in a timely and appropriate manner in the high temperature season to improve water quality, remove various harmful components in the water body, and curb the occurrence of diseases and insect pests. Adjust the water, increase the nutrients in the water, adjust the water state, promote the growth of aquatic life and plants, improve the disease resistance and growth rate of fish, increase the size of individuals, improve the quality, and truly cultivate pollution-free, high-quality, large-sized fish. 58 Tongcheng Fish Ponds for Rent.

4. "Six Methods for Disease Prevention in Large Water Fish Farming" How to raise silver carp to grow fast.

It is difficult to prevent and control fish diseases in large water bodies. Applying pesticides on large water bodies is not only uneconomical, but also easy to cause water pollution. In order to control the occurrence of fish diseases in large water bodies, six methods of preventing fish diseases in large water bodies are now provided for reference by farmers.

1. Fish species disinfection method For large-scale fish farming, you must select strong and large-sized fish species during the stocking season, and they can be stocked after disinfection. Commonly used disinfectants include, fish salt, table salt, and sub-blue, which have a certain killing effect on bacteria and parasites on the surface and gills of fish.

2. Bait disinfection method Pathogens are often brought into the fish body with the bait, so the bait must be clean, fresh and disinfected. Animal baits such as snails and clams should be washed with clean water and fresh individuals should be selected for feeding; plant baits such as aquatic plants and terrestrial plants should be soaked in a 6 mg/L solution for 20 to 30 minutes before feeding; when applying organic fertilizers, add grams to kilograms of manure, stir evenly and then put into the water. Reservoirs for rent within 20,000 yuan.

3. Hanging bag method Hanging bags must first set up a fixed feeding table to make the fish develop a habit of eating. If you are raising herbivorous fish, you can use bamboo poles to make a triangular or polygonal frame to build a floating water surface feeding table. Use hanging bags regularly (usually a course of treatment every 20 to 30 days), each bag of hanging bags is grams, and it is changed once a day for 3 consecutive days; copper and ferrous hanging bags, each bag of copper is grams, and ferrous is 40 grams, and it is changed once a day for 3 consecutive days. The medicine bags should be hung around the feeding table, and 3 to 6 bags can be hung on each feeding table. The profit of fish farming in a 20-acre fish pond is 1.

4. Feeding medicated bait: Grass carp and black carp growing on large water surfaces are prone to enteritis. In the disease season (May to October each year), diflubenzuron is used for prevention. The daily dosage is calculated based on 1 gram of diflubenzuron powder per 10 kg of fish weight. The daily dosage is halved, and the powder is used as an adhesive to make medicated bait for feeding fish. In addition, feeding grass carp with garlic mixed with grass or soaking grass in salt water has a better effect in preventing infectious diseases.

5. Chinese herbal medicine for prevention and treatment Herbal medicine can be collected locally, with a wide source, low cost and good effect. For example, Pinus massoniana leaves can prevent and treat enteritis and gill rot of grass carp; T. sapogenis leaves and rhubarb roots can prevent and treat gill rot and white head and white mouth disease of fish; Herba scutellariae and Amaranthus ferox can prevent and treat enteritis and gill rot of grass carp and black carp; neem roots and leaves can prevent and treat fish parasitic diseases; Schizonepeta tenuifolia and Cyperus rotten can prevent and treat fish capillaria; the roots, leaves and rot of Chinese herbal medicines can be used as fertilizer after they rot.

6. Controlled Fertilization Method: In large-scale fish farming, the amount of artificial fertilization must be controlled. In order to ensure the ecological balance of the water area, excessive application of organic and inorganic fertilizers is generally not recommended. Excessive application of human and animal feces can easily infect fish with parasitic diseases; excessive application of chemical fertilizers can cause sudden and massive reproduction of plankton, which can easily lead to outbreaks of fish diseases during high temperatures.

It depends on what kind of fish you raise. If you raise good domestic fish, tens of thousands of dollars is not a problem.

The above is the content related to whether opening a fish farm is profitable. It is about sharing how to make money from opening a fish farm. After reading the profit of raising fish in a 20-acre reservoir, I hope this will be helpful to everyone!